265336064 has 72 divisors (see below), whose sum is σ = 637237440. Its totient is φ = 107716608.

The previous prime is 265336063. The next prime is 265336111. The reversal of 265336064 is 460633562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265336063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30152 + ... + 37944.

It is an arithmetic number, because the mean of its divisors is an integer number (8850520).

Almost surely, 2^265336064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265336064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318618720).

265336064 is an abundant number, since it is smaller than the sum of its proper divisors (371901376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

265336064 is an equidigital number, since it uses as much as digits as its factorization.

265336064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7835 (or 7821 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 35.

The square root of 265336064 is about 16289.1394493386. The cubic root of 265336064 is about 642.5872351990.

The spelling of 265336064 in words is "two hundred sixty-five million, three hundred thirty-six thousand, sixty-four".